MXPA06011699A

MXPA06011699A - Pneumatically operated device having check valve vent.

Info

Publication number: MXPA06011699A
Application number: MXPA06011699A
Authority: MX
Inventors: Christopher L Strong
Original assignee: Illinois Tool Works
Priority date: 2004-04-07
Filing date: 2005-03-28
Publication date: 2006-12-14
Also published as: TWI277454B; US20050224609A1; DE602005011455D1; WO2005097341A1; TW200533420A; CA2568934A1; EP1781415A1; US7703702B2; JP2007532294A; AU2005230282A1; EP1781415B1; AU2005230282B2

Abstract

A pneumatically operated device (12). The pneumatically operated device comprises a movable (104) member disposed within a housing (90). The movable member is operable to control operation of the device. Pressurized air (62) is directed to a first side (126) of the movable member to drive the movable member in a first direction to operate the device. The pneumatically operated device comprises a check valve (184) disposed through an opening (186) in the housing to enable air to vent from a second side (118) of the movable member. The check valve may comprise a flexible cover (190) extending over the opening and biased against the housing to form a seal.

Description

of the sprinkler so that it matches the pressure coming from the diaphragm. In addition, the material to be sprayed occasionally is diverted to the sprinkler. In the example of a toilet that was mentioned above, the limited space inside the toilet forces the automatic sprinkler to close the surface of the toilet during the spray. This increases the likelihood that some of the spray material will be diverted to the sprinkler. Similarly, in multi-sprinkler applications, one of the sprinklers can be aligned to spray the material in a smaller portion to the other sprinkler. As a result, automatic sprinklers can be routinely washed or hosed down to prevent the accumulation of spray material on the important parts of the sprinkler. If the spray material is not removed, it can interfere with the operation of the sprayer and / or produce defects when the coating is applied by means of the sprayer. However, problems have been experienced when washing automatic sprinklers. Vents that prevent air leakage in an operation of inadvertent shutdown of the sprinkler, also allow water or other cleaning solutions to enter the sprinkler during cleaning. These cleaning fluids may cause the internal components of the sprinkler to rust or otherwise cause the sprinkler to fail. Therefore, a technique is necessary to address the above problems.

BRIEF DESCRIPTION OF THE INVENTION A pneumatically operated device. The pneumatically operated device comprises a movable member positioned within the housing. The mobile member is operable to control the operation of the device. The pressurized air is directed to the first side of the movable member to guide the movable member to the first indication to operate the device. The pneumatically operated device comprises a check valve positioned through an opening in the housing to allow air to exit the second side of the movable member. The check valve can be composed of a flexible cover that extends over the opening and deflects against the housing to form a seal.

BRIEF DESCRIPTION OF THE DRAWINGS The foregoing and other advantages of the invention will be apparent upon reading the following detailed description and with reference to the drawings in which: Fig. 1 is a diagram illustrating an exemplary spray system having a spray device in accordance with certain modalities of the present technique; Fig. 2 is a perspective view of an exemplary embodiment of the spray device illustrated in Fig. 1; Fig. 3 is a side view of a cross section illustrating exemplary internal passages and flow control components of the spray device illustrated in Fig. 2; Fig. 3A is a cross-sectional view of a check valve installed in the spray device to reduce the pressure within the spray device, generally taken along line 3A-3A of Fig. 3A. 3. Fig. 3B is a cross-sectional view of the check valve of Fig. 3A, illustrating the operation of the check valve to reduce the internal pressure of the housing where the spray device is located; Fig. 4 is a side view of a partial cross-section showing an exemplary spray formation section of the spray device illustrated in Figures 2 and 3; Fig. 5 is a side view showing an exemplary detachable holder of the spray device illustrated in Fig. 1; Fig. 6 is a front view illustrating the spray device mounted on a mounting member through the release holder illustrated in Fig. 5; and Fig. 7 is a front view showing the parts separately and illustrates the disassembled spray device of the mounting member of Fig. 6.

DETAILED DESCRIPTION OF THE SPECIFIC INCORPORATIONS As will be discussed in detail below, the present technique provides a unique spray device having features that facilitate disarming, service and repetitive assembly basically in the same spray position. For example, the spray device of the present art has several structural features that reduce the likelihood of draining the fluid to an undesired area of the spray device during disassembly and maintenance. The present spray device also has a unique mounting mechanism, which maintains the desired mounting position for the spray device in the event of disassembly and subsequent re-assembly of the spray device. Turning now to the figures, Fig. 1 is a flow diagram illustrating an example of the sprinkler system 10, which consists of a sprinkling device 12 for applying the desired material to a purpose object 4. For example, the Spray device 12 may consist of an air sprinkler, a rotary sprinkler, an electrostatic sprinkler, or any other appropriate dew formation mechanism. The dew device 12 may also consist of an automatic trigger or an on / off mechanism, such as a pressure activated valve assembly. The spray device 12 can be coupled to a variety of supply and control systems, such as the supply of material 16 (for example: a fluid or powder), an air supply 18, and a control system 20. The control system 20 facilitates the control of the material and air supply 16 and 18 and ensures that the spray device 12 provides an acceptable spray quality coating on the target object 14. For example, the control system 20 may include a spray system. automation 22, a positioning system 24, a material supply controller 26, an air supply controller 28, a computer system 30, and a user interface 32. The control system 20 can also be connected to a control system. positioning 34, which facilitates the movement of the target object 14. For example, the control system 20 may include an automation system 22, a positioning system 24, a supply controller material 26, and an air supply controller 28, a computer system 30, and a user interface 32. The control system 20 can also be coupled to a positioning system 34, which facilitates the movement of the target object. related to the spray device 12. For example, any of the positioning systems one or both 24 and 34 may consist of an assembly line, a hydraulic lift, a robotic arm as well as a variety of other positioned mechanisms controlled by the system of control 20. Accordingly, the spray system 0 can provide a computer controlled spray pattern across the surface of the target object 14. The spray system 10 of Fig. 1 is applicable to a wide variety of applications , materials, target objects, and spray device types / configurations 12. For example, a user may select a desired substance 36 from a variety of substances. 38 different types, such as different types of products and materials. The user may also select the desired material 40 from a plurality of different materials 42, which may include different types of materials and characteristics for a variety of materials such as metal, wood, stone, concrete, glazed ceramics or Other ceramic coating material, which can be applied to toilets, sinks, water heaters, washing machines, food dishes, and bowls etc. The desired material 40 may also consist of: insecticides, fungicides, and various other chemical treatments. further, the desired material 40 may have a solid form (example: powder), a fluid form, multi-stage form (solid and liquid example), or any other suitable form. Fig. 2 is a perspective view illustrating an exemplary embodiment of a spray device 12. As illustrated, the spray device 12 comprises a body 50 having a base section 52, an intermediate section 54 coupled to the cross section. of base, a section of the head 56 coupled to the intermediate section 54, and a section of dew formation coupled to the head section. The fluid inlet 60 and the air inlet 62 also extends in the body 50, thus feeding a desired fluid and air to the dew device 12 to form the desired spray through the head and dew sections 56 and 58. As discussed above, the spray device 12 may consist of any of the suitable fluid atomization mechanisms, air valves, fluid valves, mechanisms for forming the spray (for example: nozzles or orifices of maximum capacity of air), etcetera. The spray device 12 can also be activated or triggered automatically, through a valve activated by pressure. In the illustrated embodiment, the dew device 12 also comprises a releasable holder 64 releasably coupled to the body 50 through a clamping mechanism, such as an externally threaded fastener 66 and an internally threaded fastener 68. Other suitable fasteners free of tool or tool-based are also within the scope of the field of the present technique. For example, the releasable holder 64 may be coupled to the body 50 through a latch, a spring-loaded mechanism, a retainer member, a compression adjustment mechanism, an electro-mechanical latch mechanism, a releasable latch, a gasket or release hinge, etcetera. The releasable holder 64 also consists of an external mounting mechanism, such as the mounting receptacle 70 and the mounting fasteners or adjusting screws 72 and 74 that extend into the mounting receptacle 70. As will be discussed later in detail, the The dew device 12 can be placed in a desired removable or stationary positioning system by extending the mounting rod or member into mounting receptacle 70 and securing the releasable holder 64 to the mounting member through the mounting clips or the mounting screws. adjustment 72 and 74. The spray device 12 can be disassembled either by disconnecting the mounting fasteners 72 and 74 from the mounting member or by disconnecting the fasteners 66 and 68 from the body 50 of the spray device 12. In this exemplary embodiment, the last approach it can be used to preserve the desired mounting position of the releasable holder 64 on the mounting member. Accordingly, if the dew device 12 is removed for maintenance, replacement or other purposes, then the release fastener 64 should remain adhered to the mounting member to ensure that the dew device 12 or its substitute can be re-clamped in the same or substantially the same mounting position. Turning now to the internal features, Fig. 3 shows a cross-sectional side view of the spray device 12 illustrating exemplary flow passages, flow control mechanisms and dew formation mechanisms. As illustrated, a flow passage 76 extends angularly to the head section 56 toward a longitudinal centerline 78, where the flow passage 76 aligns with the longitudinal centerline 78 and continues to the front 80 of the body section. head 56. At the front 80, the flow passage 76 extends outwardly from the front 80 to form a protruding flow passage 82 having a fluid outlet 84 that is longitudinally biased from the front 80. As illustrated, the fluid nozzle 86 is removably coupled to the protruding flow passage 82 at the outlet of the flow 84 through the retainer 88, which may consist of an annular structure having internal threads 90 engaged with the external threads 92 of the protruding flow passage 82. The illustrated flow nozzle 86 consists of an inwardly angled entry surface 94 abutting the externally angled outlet surface 96 of the protruding flow passage 82, thereby forming a compression fit or a stamp coined as the retainer 88 is coupled with the protruding flow passage 82. Alternatively, the flow nozzle 86 may be coupled to the protruding flow passage 82 through a variety of different seal pieces (eg: a torico ring), compression adjustment mechanisms, threaded couplings, sealing materials, and so on. The flow nozzle 86 also has a converging internal passage 98, which extends outwardly from the inwardly angled entry surface 94 towards the annular fluid outlet 100. It should be noted that the fluid nozzle 86 may comprise a fluid structure. a single piece formed through the molding process, a machining process, or any other suitable manufacturing process. However, any other multi-sectional structure and assembly process is within the field of the present art. The illustrated flow nozzle 86 also has a relatively small internal volume substantially defined by the converging internal passage 98. As will be discussed in detail below, the protruding flow passage 82 and the converging internal passage 98 can provide certain benefits. For example, passages 82 and 98 can reduce the drainage or spillage of fluids to other parts of spray device 12 during service, maintenance and other functions in which the fluid nozzle is removed from the protruding flow passage 82. As illustrated in FIG. 3, the spray device 12 also comprises an assembly of the fluid valve 102 having a needle or valve member 104 that extends through the body 50 from the base 52, through the intermediate section 54, through the section of the head 56 and toward the dew formation section 58. In the section of the base 52, the fluid valve assembly 102 has a valve spring 106, which bypasses the valve member 104 is adjusted outward from the section of the base 52 towards the dew formation section 58, where the coined tip 108 of the valve member 104 seals compressively against the inner part corresponds tooth 110 of the converging internal passage 98 of the fluid nozzle 86. The fluid valve assembly 102 also comprises a pressure adjusting mechanism or piston assembly 112 to facilitate inward opening of the valve member 104 related to the nozzle of fluid 86. The pressure adjusting mechanism or piston assembly 112 consists of a valve piston 114 positioned in the valve member 104, a piston adjustment spring 116 placed in the chamber 118 of the base section 52 around the spring of the valve 106, and a diaphragm of air extending in the valve piston 114 and through the chamber 118 to a splice edge 122 between the section of the base 52 and the intermediate section 54. Other mechanisms of pressure adjustment are also within the field of the present technique. For example, the piston assembly 112 may incorporate a piston sealed to the inner wall of the cylinder. As further illustrated in Fig. 3, the piston adjustment spring 116 elastically constrains the valve piston 114 outwardly from the section of the base 52 toward the intermediate section 54. In this outwardly offset position, the valve piston 114 disengages from a coupling member of valve 124 coupled to valve member 104. If air is supplied by one of air inlets 62 to an internal air passage 126, then the air bypasses by pressure the diaphragm 20 and the piston of the corresponding valve 1 14 with sufficient force to overcome the force of the adjusting spring of the piston 1 16. Therefore, the piston of the valve 114 moves inward from intermediate section 54 towards the base section 52. As the air pressure forces the valve piston 1 14 inward against the valve coupling member 124, the air pressure will further exceed the force of the spring, of the spring of the valve 106. Accordingly, the valve piston 114 by pressure deflects the valve coupling member 124 and the corresponding valve distribution member 104 inwardly from the intermediate section 54 toward the base section 52, of that mode moves the valve member 104 and the corresponding wedged tip 108 inwardly away from the inner part 1 10 of the fluid nozzle 86 to an open position. Although illustrated as an internal opening valve, the valve assembly 102 may consist of an external opening valve, an independent internal valve, an independent external valve, or any other configuration of a suitable valve. In addition, the assembly of the valve 102 can consist of a mechanism suitable for an automatic or manual valve such as the assembly of a piston-cylinder, an electro-mechanical valve mechanism, a magnetically activated valve etc.

The various sections, the internal passages and the structures of the spray device 12 are internally coupled and sealed through the threads, seals, o-rings, gaskets, compression adjusting mechanisms, packing assemblies, etc. For example, as illustrated in FIG. 3, the spray device 12 comprises an assembly of air gaskets 127 and the assembly of fluid gaskets 128 positioned in the valve member 104 between the internal air passage 126 and the passageway. In addition, the base section 52 includes an external annular structure or cover 130 threadedly engaged and sealed to an internal annular structure 132 by means of the threads 134 and the O-ring or the sealing member 136, respectively. The annular structure 132 is engaged by means of threads and sealed to the intermediate section 54 through the threading 138 and a portion of the air diaphragm 120 positioned within the splice edge 122 between the section of the base 52 and the intermediate section 54. Additional seals can also be provided within the field of the present art. In the intermediate section 54, the dew device 12 also consists of an air flow control mechanism 140, which is mounted in a receptacle 142 that extends angularly to the intermediate section 54. As illustrated, the control mechanism flow 140 comprises a protruding valve member 144, wherein the release seals against the annular opening 146 extend in the air passage 148 between the air passages 126 and 148. Accordingly, the flow control mechanism 140 provides control over the air flow between the header section 56 and the dew formation section 58 through the air passage 148. The dew device 12 also has a seal 150 positioned between the intermediate section 54 and the head section. 56, in order to create a hermetic seal between the two sections and in the air passages that extend between the two sections. Additional seals can also be provided within the art of the present art.

The head section 56 also consists of an air passage 152 going from the intermediate section 54 to the front 80, so that the air outlet 154 of the air passage 152 is longitudinally displaced from the fluid outlet 84 of the passage of air. outflow 82. In the event that the fluid nozzle 86 is removed from the outflow passage 82, the anterior longitudinal travel distance between the fluid and the air outlets 84 and 154 substantially reduce or eliminate drainage or fluid spillage. in the air passage 152 as well as in other parts of the spray device 12. Turning now to the dew formation section 58, various fluid passages and improved fluid structures are illustrated with reference to Fig. 3. As illustrated , the dew formation section 58 consists of an inner air baffle ring 156, a front air cover 158 positioned adjacent the inner air baffle ring 156, and a ring or external retainer 160 movably coupled to the head section 56 and positioned in the inner air baffle ring 156 and the front air cover 158. The inner air baffle ring 156 is sealed against the front portion 80 of the head section. head 56 through a compression fit or wedged interface 162. Similarly, the front air cover 158 is sealed against the inner air deflector ring 156 through a compression fit or a wedged interface 164. Finally, the ring external retainer 160 consists of an inner edge 166 that traps and seals against the outer edges 168 of the front air cover 158. As the outer retainer ring 160 is secured to the head section 56 through the threads 170, the external retainer ring 160 compresses the front air cover 158, the inner air deflector ring 156, and the head section 56 from one to the other to create a compression or minting seal in each of the wedged interfaces 162 and 164. As illustrated, the sealing part or the O-shaped ring 171 may also be provided. between the external retainer ring 160 and the section of the adjacent threaded head 56. When assembling, the different components of the dew section 58 also define several passages to facilitate the automation of the existing fluid of the fluid nozzle 86. As illustrated, the internal air baffle ring 156, the front air cover 158, and the external retainer ring 160 collectively define a passage for curved or U-shaped air 172, which goes from the air passage 148 in the air section. head 56 to the passages of the air cover 174 in the front air cover 158. The passages of the air cover 174 further extend to the holes or injectors 176, which are direct two internally towards the center line 78 to facilitate the desired spray pattern. The inner air baffle ring 156 and the front air cover 158 also define the internal air passage 178 over the outflow passage 82, the fluid nozzle 86 and the retainer 88. As illustrated, the interior of the air passage 178 extends from the air passage 152 in the head section 56 to a plurality of air atomization orifices 180 in the front section 182 of the front air cover 158. These air atomization orifices 180 are positioned on the annular flow outlet 100 of the fluid nozzle 86, so that the orifices or air atomization nozzles facilitate the atomization of the existing fluid from the fluid nozzle 86. Again, as the dew device 12 creates a Spray fluid, the dew-forming orifices 176 facilitate the shape or pattern of the desired spray for a straight spray, a conical spray pattern, a conical spray pattern or narrow etc. In addition, the dew device 12 is provided with a check valve 184 to allow the cover 130 of the dew device 12 to come out into the atmosphere. The check valve 184 prevents pressurization of air that is lost in the diaphragm 120 or between the valve coupling member 124 and the valve member 104 of accumulating pressure in the cover 130, which can guide the pressure that goes to be equalized through the diaphragm 120. In addition, the check valve 184 is designed to prevent cleaning liquids or solutions from entering the spray device 12 through the check valve 184. Referring generally to Figs. 3A and 3B, the illustrated check valve 184 is a one-piece check valve composed of a flexible material, such as the elastomer material or a polymer, which extends through a hole 186 that is in the cover 130 of the spray device 12. In this embodiment, the check valve 184 is a sunshade-type check valve. The umbrella-type check valve 184 is inserted into the hole 186 in the cover 130. The check valve 184 is held in place in the hole 186 by means of a flanged portion 188 which is located within the cover 130 and the bell-shaped 190 which is located on the outer cover 130. The check valve 184 also has a rod 192 which connects the bell-shaped external part 190 to the flanged part 88 located inside the cover 130. The part Bell-shaped 190 of check valve 84 has a flexible edge 194 that forms a seal between check valve 184 and cover 130. Edge 194 of check valve 184 prevents cleaning liquids 196 from entering the cover 130 through the orifice 186. As illustrated in Fig. 3B, the rod 192 of the check valve 184 has at least one slot 198 which allows the outgoing air 200 to pass through the piston. n of the valve 114 and the diaphragm 120 towards the cover 130 to enter the bell-shaped part 190 of the check valve 184. As the air pressure accumulates in the cover 130, the air pressure produces a force that pushes the edge 194 outwards. At a certain pressure, the force is sufficient to flex the edge 194 outside the cover 130, as represented by the arrows 202. With the unsealed edge 194 of the cover 130, the pressurized air 200 within the cover 130 is released to come out into the atmosphere, thus reducing the pressure that is inside the cover 130. The edge 94 is biased back to its original sealing position against the cover 130. During ventilation, the air pressure will finally drop to the point at which the inclination force of the edge 194 is greater than the force produced by the air pressure inside the bell-shaped part 190 of the check valve 184. This will cause the edge 194 to return to its original sealing position. against the cover 130. FIG. 4 is a cross-sectional side view of the parts separately of the dew sections and the head 56 and 58, and the exemplary characteristics of the device are illustrated. dew point 12 of the present technique. It is expected that the spray device 12 can be subjected to cleaning, servicing, maintenance, replacement of parts, as well as other functions in which the dew formation section 58 is removed from the head section 56, as illustrated in FIG. Fig. 4. For example, after operating the spray device 12, the dew formation section 58 can be removed to facilitate cleaning of the fluid nozzle 86 as well as other internal passages of the spray device 12. In contrast to the above designs, the foregoing as well as the other functions can be performed more accelerated and cleanly by removing the fluid projecting from the passage 82, the fluid segregation and the air outlets 84 and 154, and the small relative internal volume of the fluid nozzle 86. For example, if the fluid passage 76 and the fluid nozzle 86 contain residual fluids following the use of the spray device 12, then the passage for outgoing fluid 82 and the fluid segregation and the air outlets 84 and 154 and relatively the small internal volume of the fluid nozzle 86. For example, if the fluid passage 76 and the fluid nozzle 86 contain fluid residues continue to use the fluid device. dew 1, then the passage for outgoing fluid 82 and the fluid segregation and the air outlets 84 and 154 to prevent the or spillage of fluids in the air passage 152 during the removal of the fluid nozzle 86 from the section of the head 56. In addition, the relatively small internal volume of the fluid nozzle 86 defined by the converging air passage 98 also substantially reduces the amount of fluid draining from the fluid nozzle 86 during its removal from the head section 56. fluid nozzle 86 of the present art can also be cleaned faster than previous designs, because the fluid nozzle 86 has an area with a small internal surface a and a shallow depth. For the same reason, the fluid nozzle 86 of the present art can be manufactured and replaced at a relatively low cost than previous designs. Turning now to Fig. 5, a side view of the spray device 12 is provided to better illustrate the release part 64. The release part 64 is freely coupled to the upper part 204 of the body 50 through the threaded fasteners. internal and external 66 and 68. However, any other type of suitable fastener based on tools or free of tools can be used within the field of the present technique. As illustrated, the mounting clips or set screws 72 and 74 are screwed into the mounting receptacle 70, so that the releasable holder 64 can be freely coupled to the desired removable or stationary device. It should be noted that one or both ends of the detachable support 64, that is, a fasr 66 and a mounting receptacle 70, can be rotated or pivoted, so that the spray device 12 can be rotated to the desired orientation. In the illustrated embodiment, the adjustment of the fasrs 72 and 74 controls the rotation of the spray device 12. If the mounting fasrs or adjusting screws 72 and 74 are engaged in the desired removable or stationary device, then the spray device 12 may not be rotated to the desired removable or stationary device.

Fig. 6 is a front perspective view of the spray device 12 freely coupled to a mounting member or rod 206 of said removable or stationary device. For example, the mounting member or rod 206 may extend through a robotic arm, and from the assembly line, a fixed positioning structure, a fixed rod or part, a rail mechanism, the assembly of a pulley and a cable, a hydraulic assembly, a mobile placement structure, or any other suitable structure. Referring again to FIG. 1 the mounting member or rod 206 may be an integral part of the positioning system 24. The spray device 12 may be mounted to the mounting member or rod 206 upon receiving the mounting member or rod 206 in the mounting receptacle 70, by adjusting the spray device 12 to the desired spray position, and then securing the desired position through the threading of the mounting fasteners or adjustment screws 72 and 74 to the mounting receptacle 70 to contact the mounting member or the rod 206. The spray device 12 can be disassembled either by disconnecting the mounting clips 72 and 74 from the mounting member or rod 206 or by disconnecting the clips 66 and 68 from the body 50 of the spray device 12 Fig. 7 is a front perspective view of the spray device 12 presented in separate parts of the release assembly 64. As illustrated, the release assembly 64 is pre stored in its mounting position on the mounting member or rod 206, so that the spray device 12 or its substitute can be returned to the original mounting position. For example, the device 12 can be removed for service, cleaning, maintenance, replacement of parts, or other purposes. Given the sensitivity of the spray process to position the spray device, the release assembly 64 of the present technique facilitates repeated placement, repeated spray patterns as well as repeated spray results of spray device 12 and system 10 Again, other release mounting mechanisms are within the field of the present art. The techniques described above provide a pneumatically operated spray device 12 having a vent for the check valve 184 that prevents air leakage by the operation of inadvertent shutdown of the sprinkler 12. In addition, the vent of the sunshade check valve 184 prevents that the cleaning liquids enter the spray device 12. Although illustrated in the automatic sprinkler, the vent of the sunshade check valve 184 may be used in other pneumatically controlled devices to prevent the escape of air from stopping the operation of the device, while allowing the device to be cleaned or hosed down. While the invention may be susceptible to various modifications and alternative forms, specific embodiments have been shown in the drawings and have been described in detail herein only by way of examples. However, it should be understood that the invention is not intended to limit the particular forms disclosed. In addition, the invention is to cover all modifications, equivalents, and alternatives that are associated within the spirit and field of invention as defined by the following appended claims.

Claims

1. A pneumatically operated device comprising: A housing: a movable member positioned within the housing and operable to control the operation of the device, characterized in that the pressurized air is directed to the first side of the moving part to propel the mobile member in a first direction to operate the device; and a check valve disposed through an opening in the housing to allow air to exit from a second side of the movable member, the check valve comprising a flexible cover that extends over the opening and deflected against the housing member for form a seal

2. The pneumatically operated device according to claim, further characterized in that the housing has a removable lid, wherein the check valve is placed through a removable lid opening.

3. The pneumatically operated device according to claim 2, further characterized in that the flexible cover comprises an operable edge that flexes away from the cap to allow pressurized air within the cap to escape into the atmosphere. The pneumatically operated device according to claim 2, further characterized in that the check valve having a flanged portion adapted to compress in accordance with the flanged portion is placed through the opening, and that it expands outwardly once the flanged part is through the opening. 5. The pneumatically operated device according to claim 1, further characterized in that the check valve is a sunshade-type check valve. 6. The pneumatically operated device according to claim 1, further characterized in that the mobile member comprises a diaphragm. The pneumatically operated device according to claim 1, further characterized in that it comprises a spring positioned within the housing for pushing the movable member in a second direction. The pneumatically operated device according to claim 1, further characterized in that it comprises a spray flow valve coupled to the mobile member, wherein the valve is operated to initiate a spray fluid when the mobile member is driven in the first direction